54237645 has 72 divisors (see below), whose sum is σ = 118180608. Its totient is φ = 22524480.

The previous prime is 54237643. The next prime is 54237719. The reversal of 54237645 is 54673245.

54237645 is a `hidden beast` number, since 5 + 4 + 2 + 3 + 7 + 645 = 666.

It is not a de Polignac number, because 54237645 - 2¹ = 54237643 is a prime.

It is a super-3 number, since 3×54237645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54237641) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 37404 + ... + 38826.

Almost surely, 2^54237645 is an apocalyptic number.

54237645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54237645 is an abundant number, since it is smaller than the sum of its proper divisors (63942963).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54237645 is a wasteful number, since it uses less digits than its factorization.

54237645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1449 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 54237645 is about 7364.6211715200. The cubic root of 54237645 is about 378.5299738296.

Subtracting 54237645 from its reverse (54673245), we obtain a square (435600 = 660²).

The spelling of 54237645 in words is "fifty-four million, two hundred thirty-seven thousand, six hundred forty-five".